268660189 has 12 divisors (see below), whose sum is σ = 313045824. Its totient is φ = 229895064.

The previous prime is 268660187. The next prime is 268660193. The reversal of 268660189 is 981066862.

It is not a de Polignac number, because 268660189 - 2¹ = 268660187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268660187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27244 + ... + 35770.

It is an arithmetic number, because the mean of its divisors is an integer number (26087152).

Almost surely, 2^268660189 is an apocalyptic number.

It is an amenable number.

268660189 is a deficient number, since it is larger than the sum of its proper divisors (44385635).

268660189 is an equidigital number, since it uses as much as digits as its factorization.

268660189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184 (or 9177 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 268660189 is about 16390.8568720491. The cubic root of 268660189 is about 645.2595466076.

The spelling of 268660189 in words is "two hundred sixty-eight million, six hundred sixty thousand, one hundred eighty-nine".